"The only thing better than a remote-controlled plane is a remote-controlled boat" — unless you can find a toy that handles both functions, says Adam Clark Estes at Gizmodo. Parrot's Hydrofoil Minidrone ($179) is the first mini-drone that can capture video by air or sea. In a pool or lake, the vehicle acts like a fan boat: Four copter blades propel it to a speed of 6 mph as it skims across the water under the control of a smartphone or tablet.